Patents per Year
Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469516 | Modular staircase construction | — | 2008-12-30 |
| 5551495 | Universal staircase handrail volute | Mark D. Smith, Dee R. Smith | 1996-09-03 |
| 5347774 | Methods of manufacturing curved staircases and staircases produced | — | 1994-09-20 |
| 5261201 | Prefabricated curved handrail structure and connection methods | — | 1993-11-16 |
| 5163491 | Methods of manufacturing curved staircases and staircases produced | — | 1992-11-17 |
| 4953602 | Apparatus and associated methods for forming curved wooden hand rails for spiral staircases and the like | — | 1990-09-04 |